2 * appdomain.c: AppDomain functions
5 * Dietmar Maurer (dietmar@ximian.com)
7 * Gonzalo Paniagua Javier (gonzalo@ximian.com)
9 * (c) 2001-2003 Ximian, Inc. (http://www.ximian.com)
11 #undef ASSEMBLY_LOAD_DEBUG
20 #include <sys/types.h>
22 #include <mono/os/gc_wrapper.h>
24 #include <mono/metadata/object.h>
25 #include <mono/metadata/domain-internals.h>
26 #include "mono/metadata/metadata-internals.h"
27 #include <mono/metadata/assembly.h>
28 #include <mono/metadata/exception.h>
29 #include <mono/metadata/threads.h>
30 #include <mono/metadata/socket-io.h>
31 #include <mono/metadata/tabledefs.h>
32 #include <mono/metadata/gc-internal.h>
33 #include <mono/metadata/mono-gc.h>
34 #include <mono/metadata/marshal.h>
35 #include <mono/metadata/monitor.h>
36 #include <mono/metadata/threadpool.h>
37 #include <mono/metadata/mono-debug.h>
38 #include <mono/utils/mono-uri.h>
39 #include <mono/utils/mono-logger.h>
40 #include <mono/utils/mono-path.h>
41 #include <mono/utils/mono-stdlib.h>
46 #define MONO_CORLIB_VERSION 58
48 CRITICAL_SECTION mono_delegate_section;
50 static gunichar2 process_guid [36];
51 static gboolean process_guid_set = FALSE;
53 static gboolean shutting_down = FALSE;
56 mono_domain_assembly_preload (MonoAssemblyName *aname,
57 gchar **assemblies_path,
61 mono_domain_assembly_search (MonoAssemblyName *aname,
65 mono_domain_assembly_postload_search (MonoAssemblyName *aname,
69 mono_domain_fire_assembly_load (MonoAssembly *assembly, gpointer user_data);
72 add_assemblies_to_domain (MonoDomain *domain, MonoAssembly *ass, GHashTable *hash);
75 mono_domain_unload (MonoDomain *domain);
79 * @domain: domain returned by mono_init ()
81 * Initialize the core AppDomain: this function will run also some
82 * IL initialization code, so it needs the execution engine to be fully
85 * AppDomain.SetupInformation is set up in mono_runtime_exec_main, where
86 * we know the entry_assembly.
90 mono_runtime_init (MonoDomain *domain, MonoThreadStartCB start_cb,
91 MonoThreadAttachCB attach_cb)
93 MonoAppDomainSetup *setup;
100 mono_thread_pool_init ();
101 mono_marshal_init ();
103 mono_install_assembly_preload_hook (mono_domain_assembly_preload, GUINT_TO_POINTER (FALSE));
104 mono_install_assembly_refonly_preload_hook (mono_domain_assembly_preload, GUINT_TO_POINTER (TRUE));
105 mono_install_assembly_search_hook (mono_domain_assembly_search, GUINT_TO_POINTER (FALSE));
106 mono_install_assembly_refonly_search_hook (mono_domain_assembly_search, GUINT_TO_POINTER (TRUE));
107 mono_install_assembly_postload_search_hook (mono_domain_assembly_postload_search, GUINT_TO_POINTER (FALSE));
108 mono_install_assembly_postload_refonly_search_hook (mono_domain_assembly_postload_search, GUINT_TO_POINTER (TRUE));
109 mono_install_assembly_load_hook (mono_domain_fire_assembly_load, NULL);
110 mono_install_lookup_dynamic_token (mono_reflection_lookup_dynamic_token);
112 mono_thread_init (start_cb, attach_cb);
114 class = mono_class_from_name (mono_defaults.corlib, "System", "AppDomainSetup");
115 setup = (MonoAppDomainSetup *) mono_object_new (domain, class);
117 class = mono_class_from_name (mono_defaults.corlib, "System", "AppDomain");
118 ad = (MonoAppDomain *) mono_object_new (domain, class);
121 domain->setup = setup;
123 InitializeCriticalSection (&mono_delegate_section);
125 mono_thread_attach (domain);
126 mono_context_init (domain);
127 mono_context_set (domain->default_context);
129 mono_type_initialization_init ();
133 * Create an instance early since we can't do it when there is no memory.
135 arg = mono_string_new (domain, "Out of memory");
136 domain->out_of_memory_ex = mono_exception_from_name_two_strings (mono_defaults.corlib, "System", "OutOfMemoryException", arg, NULL);
139 * These two are needed because the signal handlers might be executing on
140 * an alternate stack, and Boehm GC can't handle that.
142 arg = mono_string_new (domain, "A null value was found where an object instance was required");
143 domain->null_reference_ex = mono_exception_from_name_two_strings (mono_defaults.corlib, "System", "NullReferenceException", arg, NULL);
144 arg = mono_string_new (domain, "The requested operation caused a stack overflow.");
145 domain->stack_overflow_ex = mono_exception_from_name_two_strings (mono_defaults.corlib, "System", "StackOverflowException", arg, NULL);
147 /* GC init has to happen after thread init */
150 mono_network_init ();
152 /* mscorlib is loaded before we install the load hook */
153 mono_domain_fire_assembly_load (mono_defaults.corlib->assembly, NULL);
159 mono_get_corlib_version (void)
162 MonoClassField *field;
165 klass = mono_class_from_name (mono_defaults.corlib, "System", "Environment");
166 mono_class_init (klass);
167 field = mono_class_get_field_from_name (klass, "mono_corlib_version");
170 if (! (field->type->attrs & FIELD_ATTRIBUTE_STATIC))
172 value = mono_field_get_value_object (mono_domain_get (), field, NULL);
173 return *(gint32*)((gchar*)value + sizeof (MonoObject));
177 mono_check_corlib_version (void)
179 int version = mono_get_corlib_version ();
180 if (version != MONO_CORLIB_VERSION)
181 return g_strdup_printf ("expected corlib version %d, found %d.", MONO_CORLIB_VERSION, version);
187 mono_context_init (MonoDomain *domain)
190 MonoAppContext *context;
192 class = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Contexts", "Context");
193 context = (MonoAppContext *) mono_object_new (domain, class);
194 context->domain_id = domain->domain_id;
195 context->context_id = 0;
196 domain->default_context = context;
200 * mono_runtime_cleanup:
205 * This must not be called while there are still running threads executing
209 mono_runtime_cleanup (MonoDomain *domain)
211 shutting_down = TRUE;
213 /* This ends up calling any pending pending (for at most 2 seconds) */
216 mono_thread_cleanup ();
218 mono_network_cleanup ();
220 mono_marshal_cleanup ();
222 mono_type_initialization_cleanup ();
224 mono_monitor_cleanup ();
227 static MonoDomainFunc quit_function = NULL;
230 mono_install_runtime_cleanup (MonoDomainFunc func)
232 quit_function = func;
238 if (quit_function != NULL)
239 quit_function (mono_get_root_domain (), NULL);
243 * mono_runtime_set_shutting_down:
245 * Invoked by System.Environment.Exit to flag that the runtime
249 mono_runtime_set_shutting_down (void)
251 shutting_down = TRUE;
255 * mono_runtime_is_shutting_down:
257 * Returns whether the runtime has been flagged for shutdown.
259 * This is consumed by the P:System.Environment.HasShutdownStarted
264 mono_runtime_is_shutting_down (void)
266 return shutting_down;
270 * mono_domain_has_type_resolve:
271 * @domain: application domains being looked up
273 * Returns true if the AppDomain.TypeResolve field has been
277 mono_domain_has_type_resolve (MonoDomain *domain)
279 static MonoClassField *field = NULL;
283 field = mono_class_get_field_from_name (mono_defaults.appdomain_class, "TypeResolve");
287 mono_field_get_value ((MonoObject*)(domain->domain), field, &o);
292 * mono_domain_try_type_resolve:
293 * @domain: application domainwhere the name where the type is going to be resolved
294 * @name: the name of the type to resolve or NULL.
295 * @tb: A System.Reflection.Emit.TypeBuilder, used if name is NULL.
297 * This routine invokes the internal System.AppDomain.DoTypeResolve and returns
298 * the assembly that matches name.
300 * If @name is null, the value of ((TypeBuilder)tb).FullName is used instead
302 * Returns: A MonoReflectionAssembly or NULL if not found
304 MonoReflectionAssembly *
305 mono_domain_try_type_resolve (MonoDomain *domain, char *name, MonoObject *tb)
309 static MonoMethod *method = NULL;
311 g_assert (domain != NULL && ((name != NULL) || (tb != NULL)));
313 if (method == NULL) {
314 klass = domain->domain->mbr.obj.vtable->klass;
317 method = mono_class_get_method_from_name (klass, "DoTypeResolve", -1);
318 if (method == NULL) {
319 g_warning ("Method AppDomain.DoTypeResolve not found.\n");
325 *params = (MonoObject*)mono_string_new (mono_domain_get (), name);
328 return (MonoReflectionAssembly *) mono_runtime_invoke (method, domain->domain, params, NULL);
332 * mono_domain_owns_vtable_slot:
334 * Returns whenever VTABLE_SLOT is inside a vtable which belongs to DOMAIN.
337 mono_domain_owns_vtable_slot (MonoDomain *domain, gpointer vtable_slot)
341 mono_domain_lock (domain);
342 res = mono_mempool_contains_addr (domain->mp, vtable_slot);
343 mono_domain_unlock (domain);
350 * @force: force setting.
352 * Set the current appdomain to @domain. If @force is set, set it even
353 * if it is being unloaded.
357 * FALSE if the domain is unloaded
360 mono_domain_set (MonoDomain *domain, gboolean force)
362 if (!force && domain->state == MONO_APPDOMAIN_UNLOADED)
365 mono_domain_set_internal (domain);
371 ves_icall_System_AppDomain_GetData (MonoAppDomain *ad, MonoString *name)
379 g_assert (ad != NULL);
381 g_assert (add != NULL);
384 mono_raise_exception (mono_get_exception_argument_null ("name"));
386 str = mono_string_to_utf8 (name);
388 mono_domain_lock (add);
390 if (!strcmp (str, "APPBASE"))
391 o = (MonoObject *)add->setup->application_base;
392 else if (!strcmp (str, "APP_CONFIG_FILE"))
393 o = (MonoObject *)add->setup->configuration_file;
394 else if (!strcmp (str, "DYNAMIC_BASE"))
395 o = (MonoObject *)add->setup->dynamic_base;
396 else if (!strcmp (str, "APP_NAME"))
397 o = (MonoObject *)add->setup->application_name;
398 else if (!strcmp (str, "CACHE_BASE"))
399 o = (MonoObject *)add->setup->cache_path;
400 else if (!strcmp (str, "PRIVATE_BINPATH"))
401 o = (MonoObject *)add->setup->private_bin_path;
402 else if (!strcmp (str, "BINPATH_PROBE_ONLY"))
403 o = (MonoObject *)add->setup->private_bin_path_probe;
404 else if (!strcmp (str, "SHADOW_COPY_DIRS"))
405 o = (MonoObject *)add->setup->shadow_copy_directories;
406 else if (!strcmp (str, "FORCE_CACHE_INSTALL"))
407 o = (MonoObject *)add->setup->shadow_copy_files;
409 o = mono_g_hash_table_lookup (add->env, name);
411 mono_domain_unlock (add);
421 ves_icall_System_AppDomain_SetData (MonoAppDomain *ad, MonoString *name, MonoObject *data)
427 g_assert (ad != NULL);
429 g_assert (add != NULL);
432 mono_raise_exception (mono_get_exception_argument_null ("name"));
434 mono_domain_lock (add);
436 mono_g_hash_table_insert (add->env, name, data);
438 mono_domain_unlock (add);
442 ves_icall_System_AppDomain_getSetup (MonoAppDomain *ad)
446 g_assert (ad != NULL);
447 g_assert (ad->data != NULL);
449 return ad->data->setup;
453 ves_icall_System_AppDomain_getFriendlyName (MonoAppDomain *ad)
457 g_assert (ad != NULL);
458 g_assert (ad->data != NULL);
460 return mono_string_new (ad->data, ad->data->friendly_name);
464 ves_icall_System_AppDomain_getCurDomain ()
466 MonoDomain *add = mono_domain_get ();
474 ves_icall_System_AppDomain_getRootDomain ()
476 MonoDomain *root = mono_get_root_domain ();
484 ves_icall_System_AppDomain_createDomain (MonoString *friendly_name, MonoAppDomainSetup *setup)
492 adclass = mono_class_from_name (mono_defaults.corlib, "System", "AppDomain");
494 /* FIXME: pin all those objects */
495 data = mono_domain_create();
497 ad = (MonoAppDomain *) mono_object_new (data, adclass);
501 data->friendly_name = mono_string_to_utf8 (friendly_name);
502 data->out_of_memory_ex = mono_exception_from_name_domain (data, mono_defaults.corlib, "System", "OutOfMemoryException");
504 if (!setup->application_base) {
505 /* Inherit from the root domain since MS.NET does this */
506 MonoDomain *root = mono_get_root_domain ();
507 if (root->setup->application_base)
508 MONO_OBJECT_SETREF (setup, application_base, mono_string_new_utf16 (data, mono_string_chars (root->setup->application_base), mono_string_length (root->setup->application_base)));
511 mono_context_init (data);
513 add_assemblies_to_domain (data, mono_defaults.corlib->assembly, NULL);
519 ves_icall_System_AppDomain_GetAssemblies (MonoAppDomain *ad, MonoBoolean refonly)
521 MonoDomain *domain = ad->data;
523 static MonoClass *System_Reflection_Assembly;
530 if (!System_Reflection_Assembly)
531 System_Reflection_Assembly = mono_class_from_name (
532 mono_defaults.corlib, "System.Reflection", "Assembly");
535 /* Need to skip internal assembly builders created by remoting */
536 mono_domain_assemblies_lock (domain);
537 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
539 if (refonly && !ass->ref_only)
541 if (!ass->corlib_internal)
544 res = mono_array_new (domain, System_Reflection_Assembly, count);
546 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
548 if (refonly && !ass->ref_only)
550 if (ass->corlib_internal)
552 mono_array_setref (res, i, mono_assembly_get_object (domain, ass));
555 mono_domain_assemblies_unlock (domain);
560 static MonoReflectionAssembly *
561 try_assembly_resolve (MonoDomain *domain, MonoString *fname, gboolean refonly)
565 MonoBoolean isrefonly;
568 g_assert (domain != NULL && fname != NULL);
570 klass = domain->domain->mbr.obj.vtable->klass;
573 method = mono_class_get_method_from_name (klass, "DoAssemblyResolve", -1);
574 if (method == NULL) {
575 g_warning ("Method AppDomain.DoAssemblyResolve not found.\n");
579 isrefonly = refonly ? 1 : 0;
581 params [1] = &isrefonly;
582 return (MonoReflectionAssembly *) mono_runtime_invoke (method, domain->domain, params, NULL);
585 static MonoAssembly *
586 mono_domain_assembly_postload_search (MonoAssemblyName *aname,
589 gboolean refonly = GPOINTER_TO_UINT (user_data);
590 MonoReflectionAssembly *assembly;
591 MonoDomain *domain = mono_domain_get ();
594 aname_str = mono_stringify_assembly_name (aname);
596 /* FIXME: We invoke managed code here, so there is a potential for deadlocks */
597 assembly = try_assembly_resolve (domain, mono_string_new (domain, aname_str), refonly);
602 return assembly->assembly;
608 * LOCKING: assumes assemblies_lock in the domain is already locked.
611 add_assemblies_to_domain (MonoDomain *domain, MonoAssembly *ass, GHashTable *ht)
615 gboolean destroy_ht = FALSE;
617 if (!ass->aname.name)
621 ht = g_hash_table_new (mono_aligned_addr_hash, NULL);
625 /* FIXME: handle lazy loaded assemblies */
626 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
627 g_hash_table_insert (ht, tmp->data, tmp->data);
629 if (!g_hash_table_lookup (ht, ass)) {
630 mono_assembly_addref (ass);
631 g_hash_table_insert (ht, ass, ass);
632 domain->domain_assemblies = g_slist_prepend (domain->domain_assemblies, ass);
633 mono_trace (G_LOG_LEVEL_INFO, MONO_TRACE_ASSEMBLY, "Assembly %s %p added to domain %s, ref_count=%d\n", ass->aname.name, ass, domain->friendly_name, ass->ref_count);
636 if (ass->image->references) {
637 for (i = 0; ass->image->references [i] != NULL; i++) {
638 if (ass->image->references [i] != REFERENCE_MISSING)
639 if (!g_hash_table_lookup (ht, ass->image->references [i])) {
640 add_assemblies_to_domain (domain, ass->image->references [i], ht);
645 g_hash_table_destroy (ht);
649 mono_domain_fire_assembly_load (MonoAssembly *assembly, gpointer user_data)
651 static MonoClassField *assembly_load_field;
652 static MonoMethod *assembly_load_method;
653 MonoDomain *domain = mono_domain_get ();
654 MonoReflectionAssembly *ref_assembly;
660 /* This can happen during startup */
662 #ifdef ASSEMBLY_LOAD_DEBUG
663 fprintf (stderr, "Loading %s into domain %s\n", assembly->aname.name, domain->friendly_name);
665 klass = domain->domain->mbr.obj.vtable->klass;
667 mono_domain_assemblies_lock (domain);
668 add_assemblies_to_domain (domain, assembly, NULL);
669 mono_domain_assemblies_unlock (domain);
671 if (assembly_load_field == NULL) {
672 assembly_load_field = mono_class_get_field_from_name (klass, "AssemblyLoad");
673 g_assert (assembly_load_field);
676 mono_field_get_value ((MonoObject*) domain->domain, assembly_load_field, &load_value);
677 if (load_value == NULL) {
678 /* No events waiting to be triggered */
682 ref_assembly = mono_assembly_get_object (domain, assembly);
683 g_assert (ref_assembly);
685 if (assembly_load_method == NULL) {
686 assembly_load_method = mono_class_get_method_from_name (klass, "DoAssemblyLoad", -1);
687 g_assert (assembly_load_method);
690 *params = ref_assembly;
691 mono_runtime_invoke (assembly_load_method, domain->domain, params, NULL);
695 set_domain_search_path (MonoDomain *domain)
697 MonoAppDomainSetup *setup;
702 gchar **pvt_split = NULL;
703 GError *error = NULL;
704 gint appbaselen = -1;
706 if ((domain->search_path != NULL) && !domain->setup->path_changed)
711 setup = domain->setup;
712 if (!setup->application_base)
713 return; /* Must set application base to get private path working */
716 if (setup->private_bin_path) {
717 utf8 = mono_string_to_utf8 (setup->private_bin_path);
718 pvt_split = g_strsplit (utf8, G_SEARCHPATH_SEPARATOR_S, 1000);
720 for (tmp = pvt_split; *tmp; tmp++, npaths++);
725 g_strfreev (pvt_split);
727 * Don't do this because the first time is called, the domain
728 * setup is not finished.
730 * domain->search_path = g_malloc (sizeof (char *));
731 * domain->search_path [0] = NULL;
736 if (domain->search_path)
737 g_strfreev (domain->search_path);
739 domain->search_path = tmp = g_malloc ((npaths + 1) * sizeof (gchar *));
742 *tmp = mono_string_to_utf8 (setup->application_base);
744 /* FIXME: is this needed? */
745 if (strncmp (*tmp, "file://", 7) == 0) {
751 uri = g_strdup_printf ("file:///%s", uri + 7);
754 uri = mono_escape_uri_string (tmpuri);
755 *tmp = g_filename_from_uri (uri, NULL, &error);
762 g_warning ("%s\n", error->message);
763 g_error_free (error);
770 for (i = 1; pvt_split && i < npaths; i++) {
771 if (g_path_is_absolute (pvt_split [i - 1])) {
772 tmp [i] = g_strdup (pvt_split [i - 1]);
774 tmp [i] = g_build_filename (tmp [0], pvt_split [i - 1], NULL);
777 if (strchr (tmp [i], '.')) {
781 reduced = mono_path_canonicalize (tmp [i]);
782 if (appbaselen == -1)
783 appbaselen = strlen (tmp [0]);
785 if (strncmp (tmp [0], reduced, appbaselen)) {
788 tmp [i] = g_strdup ("");
798 if (setup->private_bin_path_probe != NULL) {
800 tmp [0] = g_strdup ("");
803 domain->setup->path_changed = FALSE;
805 g_strfreev (pvt_split);
809 shadow_copy_sibling (gchar *src, gint srclen, const char *extension, gchar *target, gint targetlen, gint tail_len)
811 guint16 *orig, *dest;
812 gboolean copy_result;
814 strcpy (src + srclen - tail_len, extension);
815 if (!g_file_test (src, G_FILE_TEST_IS_REGULAR))
817 orig = g_utf8_to_utf16 (src, strlen (src), NULL, NULL, NULL);
819 strcpy (target + targetlen - tail_len, extension);
820 dest = g_utf8_to_utf16 (target, strlen (target), NULL, NULL, NULL);
822 copy_result = CopyFile (orig, dest, FALSE);
830 get_cstring_hash (const char *str)
836 if (!str || !str [0])
841 for (i = 0; i < len; i++) {
842 h = (h << 5) - h + *p;
850 get_shadow_assembly_location (const char *filename)
852 gint32 hash = 0, hash2 = 0;
855 char *bname = g_path_get_basename (filename);
856 MonoDomain *domain = mono_domain_get ();
858 hash = get_cstring_hash (bname);
859 hash2 = get_cstring_hash (g_path_get_dirname (filename));
860 g_snprintf (name_hash, sizeof (name_hash), "%08x", hash);
861 g_snprintf (path_hash, sizeof (path_hash), "%08x_%08x", hash ^ hash2, hash2);
862 return g_build_filename (mono_string_to_utf8 (domain->setup->dynamic_base),
872 ensure_directory_exists (const char *filename)
874 #ifdef PLATFORM_WIN32
875 gchar *dir_utf8 = g_path_get_dirname (filename);
877 gunichar2 *dir_utf16 = NULL;
880 if (!dir_utf8 || !dir_utf8 [0])
883 dir_utf16 = g_utf8_to_utf16 (dir_utf8, strlen (dir_utf8), NULL, NULL, NULL);
891 /* make life easy and only use one directory seperator */
908 p = wcschr (p, '\\');
911 retval = _wmkdir (dir_utf16);
912 if (retval != 0 && errno != EEXIST) {
925 gchar *dir = g_path_get_dirname (filename);
928 if (!dir || !dir [0])
939 retval = mkdir (dir, 0777);
940 if (retval != 0 && errno != EEXIST) {
955 make_shadow_copy (const char *filename)
957 gchar *sibling_source, *sibling_target;
958 gint sibling_source_len, sibling_target_len;
959 guint16 *orig, *dest;
961 gboolean copy_result;
964 shadow = get_shadow_assembly_location (filename);
965 if (ensure_directory_exists (shadow) == FALSE) {
966 exc = mono_get_exception_execution_engine ("Failed to create shadow copy (ensure directory exists).");
967 mono_raise_exception (exc);
970 orig = g_utf8_to_utf16 (filename, strlen (filename), NULL, NULL, NULL);
971 dest = g_utf8_to_utf16 (shadow, strlen (shadow), NULL, NULL, NULL);
972 copy_result = CopyFile (orig, dest, FALSE);
976 if (copy_result == FALSE) {
978 exc = mono_get_exception_execution_engine ("Failed to create shadow copy (CopyFile).");
979 mono_raise_exception (exc);
982 /* attempt to copy .mdb, .config if they exist */
983 sibling_source = g_strconcat (filename, ".config", NULL);
984 sibling_source_len = strlen (sibling_source);
985 sibling_target = g_strconcat (shadow, ".config", NULL);
986 sibling_target_len = strlen (sibling_target);
988 copy_result = shadow_copy_sibling (sibling_source, sibling_source_len, ".mdb", sibling_target, sibling_target_len, 7);
989 if (copy_result == TRUE)
990 copy_result = shadow_copy_sibling (sibling_source, sibling_source_len, ".config", sibling_target, sibling_target_len, 7);
992 g_free (sibling_source);
993 g_free (sibling_target);
995 if (copy_result == FALSE) {
997 exc = mono_get_exception_execution_engine ("Failed to create shadow copy of sibling data (CopyFile).");
998 mono_raise_exception (exc);
1005 try_load_from (MonoAssembly **assembly, const gchar *path1, const gchar *path2,
1006 const gchar *path3, const gchar *path4,
1007 gboolean refonly, gboolean is_private)
1013 fullpath = g_build_filename (path1, path2, path3, path4, NULL);
1014 if (g_file_test (fullpath, G_FILE_TEST_IS_REGULAR)) {
1016 char *new_path = make_shadow_copy (fullpath);
1018 fullpath = new_path;
1021 *assembly = mono_assembly_open_full (fullpath, NULL, refonly);
1025 return (*assembly != NULL);
1028 static MonoAssembly *
1029 real_load (gchar **search_path, const gchar *culture, const gchar *name, gboolean refonly)
1031 MonoAssembly *result = NULL;
1034 const gchar *local_culture;
1036 gboolean is_private = FALSE;
1038 if (!culture || *culture == '\0') {
1041 local_culture = culture;
1044 filename = g_strconcat (name, ".dll", NULL);
1045 len = strlen (filename);
1047 for (path = search_path; *path; path++) {
1048 if (**path == '\0') {
1050 continue; /* Ignore empty ApplicationBase */
1053 /* See test cases in bug #58992 and bug #57710 */
1054 /* 1st try: [culture]/[name].dll (culture may be empty) */
1055 strcpy (filename + len - 4, ".dll");
1056 if (try_load_from (&result, *path, local_culture, "", filename, refonly, is_private))
1059 /* 2nd try: [culture]/[name].exe (culture may be empty) */
1060 strcpy (filename + len - 4, ".exe");
1061 if (try_load_from (&result, *path, local_culture, "", filename, refonly, is_private))
1064 /* 3rd try: [culture]/[name]/[name].dll (culture may be empty) */
1065 strcpy (filename + len - 4, ".dll");
1066 if (try_load_from (&result, *path, local_culture, name, filename, refonly, is_private))
1069 /* 4th try: [culture]/[name]/[name].exe (culture may be empty) */
1070 strcpy (filename + len - 4, ".exe");
1071 if (try_load_from (&result, *path, local_culture, name, filename, refonly, is_private))
1080 * Try loading the assembly from ApplicationBase and PrivateBinPath
1081 * and then from assemblies_path if any.
1083 static MonoAssembly *
1084 mono_domain_assembly_preload (MonoAssemblyName *aname,
1085 gchar **assemblies_path,
1088 MonoDomain *domain = mono_domain_get ();
1089 MonoAssembly *result = NULL;
1090 gboolean refonly = GPOINTER_TO_UINT (user_data);
1092 set_domain_search_path (domain);
1094 if (domain->search_path && domain->search_path [0] != NULL) {
1095 result = real_load (domain->search_path, aname->culture, aname->name, refonly);
1098 if (result == NULL && assemblies_path && assemblies_path [0] != NULL) {
1099 result = real_load (assemblies_path, aname->culture, aname->name, refonly);
1106 * Check whenever a given assembly was already loaded in the current appdomain.
1108 static MonoAssembly *
1109 mono_domain_assembly_search (MonoAssemblyName *aname,
1112 MonoDomain *domain = mono_domain_get ();
1115 gboolean refonly = GPOINTER_TO_UINT (user_data);
1117 mono_domain_assemblies_lock (domain);
1118 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
1120 /* Dynamic assemblies can't match here in MS.NET */
1121 if (ass->dynamic || refonly != ass->ref_only || !mono_assembly_names_equal (aname, &ass->aname))
1124 mono_domain_assemblies_unlock (domain);
1127 mono_domain_assemblies_unlock (domain);
1132 MonoReflectionAssembly *
1133 ves_icall_System_Reflection_Assembly_LoadFrom (MonoString *fname, MonoBoolean refOnly)
1135 MonoDomain *domain = mono_domain_get ();
1136 char *name, *filename;
1137 MonoImageOpenStatus status = MONO_IMAGE_OK;
1140 MONO_ARCH_SAVE_REGS;
1142 if (fname == NULL) {
1143 MonoException *exc = mono_get_exception_argument_null ("assemblyFile");
1144 mono_raise_exception (exc);
1147 name = filename = mono_string_to_utf8 (fname);
1149 ass = mono_assembly_open_full (filename, &status, refOnly);
1154 if (status == MONO_IMAGE_IMAGE_INVALID)
1155 exc = mono_get_exception_bad_image_format2 (NULL, fname);
1157 exc = mono_get_exception_file_not_found2 (NULL, fname);
1159 mono_raise_exception (exc);
1164 return mono_assembly_get_object (domain, ass);
1167 MonoReflectionAssembly *
1168 ves_icall_System_AppDomain_LoadAssemblyRaw (MonoAppDomain *ad,
1169 MonoArray *raw_assembly,
1170 MonoArray *raw_symbol_store, MonoObject *evidence,
1171 MonoBoolean refonly)
1174 MonoReflectionAssembly *refass = NULL;
1175 MonoDomain *domain = ad->data;
1176 MonoImageOpenStatus status;
1177 guint32 raw_assembly_len = mono_array_length (raw_assembly);
1178 MonoImage *image = mono_image_open_from_data_full (mono_array_addr (raw_assembly, gchar, 0), raw_assembly_len, TRUE, NULL, refonly);
1181 mono_raise_exception (mono_get_exception_bad_image_format (""));
1185 if (raw_symbol_store != NULL)
1186 mono_debug_init_2_memory (image, mono_array_addr (raw_symbol_store, guint8, 0), mono_array_length (raw_symbol_store));
1188 ass = mono_assembly_load_from_full (image, "", &status, refonly);
1192 mono_image_close (image);
1193 mono_raise_exception (mono_get_exception_bad_image_format (""));
1197 refass = mono_assembly_get_object (domain, ass);
1198 MONO_OBJECT_SETREF (refass, evidence, evidence);
1202 MonoReflectionAssembly *
1203 ves_icall_System_AppDomain_LoadAssembly (MonoAppDomain *ad, MonoString *assRef, MonoObject *evidence, MonoBoolean refOnly)
1205 MonoDomain *domain = ad->data;
1206 MonoImageOpenStatus status = MONO_IMAGE_OK;
1208 MonoAssemblyName aname;
1209 MonoReflectionAssembly *refass = NULL;
1213 MONO_ARCH_SAVE_REGS;
1215 g_assert (assRef != NULL);
1217 name = mono_string_to_utf8 (assRef);
1218 parsed = mono_assembly_name_parse (name, &aname);
1224 /* This is a parse error... */
1225 exc = mono_get_exception_file_not_found2 (NULL, assRef);
1226 mono_raise_exception (exc);
1229 ass = mono_assembly_load_full (&aname, NULL, &status, refOnly);
1230 mono_assembly_name_free (&aname);
1232 if (!ass && (refass = try_assembly_resolve (domain, assRef, refOnly)) == NULL){
1233 /* FIXME: it doesn't make much sense since we really don't have a filename ... */
1234 MonoException *exc = mono_get_exception_file_not_found2 (NULL, assRef);
1235 mono_raise_exception (exc);
1239 refass = mono_assembly_get_object (domain, ass);
1241 MONO_OBJECT_SETREF (refass, evidence, evidence);
1246 ves_icall_System_AppDomain_InternalUnload (gint32 domain_id)
1248 MonoDomain * domain = mono_domain_get_by_id (domain_id);
1250 MONO_ARCH_SAVE_REGS;
1252 if (NULL == domain) {
1253 MonoException *exc = mono_get_exception_execution_engine ("Failed to unload domain, domain id not found");
1254 mono_raise_exception (exc);
1257 if (domain == mono_get_root_domain ()) {
1258 mono_raise_exception (mono_get_exception_cannot_unload_appdomain ("The default appdomain can not be unloaded."));
1263 * Unloading seems to cause problems when running NUnit/NAnt, hence
1266 if (g_getenv ("MONO_NO_UNLOAD"))
1269 mono_domain_unload (domain);
1273 ves_icall_System_AppDomain_InternalIsFinalizingForUnload (gint32 domain_id)
1275 MonoDomain *domain = mono_domain_get_by_id (domain_id);
1280 return mono_domain_is_unloading (domain);
1284 ves_icall_System_AppDomain_ExecuteAssembly (MonoAppDomain *ad, MonoString *file,
1285 MonoObject *evidence, MonoArray *args)
1287 MonoAssembly *assembly;
1292 MonoReflectionAssembly *refass;
1294 MONO_ARCH_SAVE_REGS;
1296 filename = mono_string_to_utf8 (file);
1297 assembly = mono_assembly_open (filename, NULL);
1301 mono_raise_exception (mono_get_exception_file_not_found2 (NULL, file));
1303 image = assembly->image;
1305 method = mono_get_method (image, mono_image_get_entry_point (image), NULL);
1308 g_error ("No entry point method found in %s", image->name);
1311 args = (MonoArray *) mono_array_new (ad->data, mono_defaults.string_class, 0);
1313 refass = mono_assembly_get_object (ad->data, assembly);
1314 MONO_OBJECT_SETREF (refass, evidence, evidence);
1316 res = mono_runtime_exec_main (method, (MonoArray *)args, NULL);
1322 ves_icall_System_AppDomain_GetIDFromDomain (MonoAppDomain * ad)
1324 MONO_ARCH_SAVE_REGS;
1326 return ad->data->domain_id;
1330 ves_icall_System_AppDomain_InternalSetDomain (MonoAppDomain *ad)
1332 MonoDomain *old_domain = mono_domain_get();
1334 MONO_ARCH_SAVE_REGS;
1336 if (!mono_domain_set (ad->data, FALSE))
1337 mono_raise_exception (mono_get_exception_appdomain_unloaded ());
1339 return old_domain->domain;
1343 ves_icall_System_AppDomain_InternalSetDomainByID (gint32 domainid)
1345 MonoDomain *current_domain = mono_domain_get ();
1346 MonoDomain *domain = mono_domain_get_by_id (domainid);
1348 MONO_ARCH_SAVE_REGS;
1350 if (!domain || !mono_domain_set (domain, FALSE))
1351 mono_raise_exception (mono_get_exception_appdomain_unloaded ());
1353 return current_domain->domain;
1357 ves_icall_System_AppDomain_InternalPushDomainRef (MonoAppDomain *ad)
1359 MONO_ARCH_SAVE_REGS;
1361 mono_thread_push_appdomain_ref (ad->data);
1365 ves_icall_System_AppDomain_InternalPushDomainRefByID (gint32 domain_id)
1367 MonoDomain *domain = mono_domain_get_by_id (domain_id);
1369 MONO_ARCH_SAVE_REGS;
1373 * Raise an exception to prevent the managed code from executing a pop
1376 mono_raise_exception (mono_get_exception_appdomain_unloaded ());
1378 mono_thread_push_appdomain_ref (domain);
1382 ves_icall_System_AppDomain_InternalPopDomainRef (void)
1384 MONO_ARCH_SAVE_REGS;
1386 mono_thread_pop_appdomain_ref ();
1390 ves_icall_System_AppDomain_InternalGetContext ()
1392 MONO_ARCH_SAVE_REGS;
1394 return mono_context_get ();
1398 ves_icall_System_AppDomain_InternalGetDefaultContext ()
1400 MONO_ARCH_SAVE_REGS;
1402 return mono_domain_get ()->default_context;
1406 ves_icall_System_AppDomain_InternalSetContext (MonoAppContext *mc)
1408 MonoAppContext *old_context = mono_context_get ();
1410 MONO_ARCH_SAVE_REGS;
1412 mono_context_set (mc);
1418 ves_icall_System_AppDomain_InternalGetProcessGuid (MonoString* newguid)
1420 MonoDomain* mono_root_domain = mono_get_root_domain ();
1421 mono_domain_lock (mono_root_domain);
1422 if (process_guid_set) {
1423 mono_domain_unlock (mono_root_domain);
1424 return mono_string_new_utf16 (mono_domain_get (), process_guid, sizeof(process_guid)/2);
1426 memcpy (process_guid, mono_string_chars(newguid), sizeof(process_guid));
1427 process_guid_set = TRUE;
1428 mono_domain_unlock (mono_root_domain);
1433 mono_domain_is_unloading (MonoDomain *domain)
1435 if (domain->state == MONO_APPDOMAIN_UNLOADING || domain->state == MONO_APPDOMAIN_UNLOADED)
1442 clear_cached_vtable (gpointer key, gpointer value, gpointer user_data)
1444 MonoClass *klass = (MonoClass*)key;
1445 MonoDomain *domain = (MonoDomain*)user_data;
1446 MonoClassRuntimeInfo *runtime_info;
1448 runtime_info = klass->runtime_info;
1449 if (runtime_info && runtime_info->max_domain >= domain->domain_id)
1450 runtime_info->domain_vtables [domain->domain_id] = NULL;
1453 typedef struct unload_data {
1455 char *failure_reason;
1458 static guint32 WINAPI
1459 unload_thread_main (void *arg)
1461 unload_data *data = (unload_data*)arg;
1462 MonoDomain *domain = data->domain;
1465 * FIXME: Abort our parent thread last, so we can return a failure
1466 * indication if aborting times out.
1468 if (!mono_threads_abort_appdomain_threads (domain, 10000)) {
1469 data->failure_reason = g_strdup_printf ("Aborting of threads in domain %s timed out.", domain->friendly_name);
1473 /* Finalize all finalizable objects in the doomed appdomain */
1474 if (!mono_domain_finalize (domain, 10000)) {
1475 data->failure_reason = g_strdup_printf ("Finalization of domain %s timed out.", domain->friendly_name);
1479 /* Clear references to our vtables in class->runtime_info.
1480 * We also hold the loader lock because we're going to change
1481 * class->runtime_info.
1483 mono_domain_lock (domain);
1484 mono_loader_lock ();
1485 g_hash_table_foreach (domain->class_vtable_hash, clear_cached_vtable, domain);
1486 mono_loader_unlock ();
1487 mono_domain_unlock (domain);
1489 mono_threads_clear_cached_culture (domain);
1491 domain->state = MONO_APPDOMAIN_UNLOADED;
1493 /* printf ("UNLOADED %s.\n", domain->friendly_name); */
1495 /* remove from the handle table the items related to this domain */
1496 mono_gchandle_free_domain (domain);
1498 mono_domain_free (domain, FALSE);
1500 mono_gc_collect (mono_gc_max_generation ());
1506 * mono_domain_unload:
1507 * @domain: The domain to unload
1509 * Unloads an appdomain. Follows the process outlined in:
1510 * http://blogs.gotdotnet.com/cbrumme
1512 * If doing things the 'right' way is too hard or complex, we do it the
1513 * 'simple' way, which means do everything needed to avoid crashes and
1514 * memory leaks, but not much else.
1517 mono_domain_unload (MonoDomain *domain)
1519 HANDLE thread_handle;
1522 MonoAppDomainState prev_state;
1525 unload_data thread_data;
1526 MonoDomain *caller_domain = mono_domain_get ();
1528 /* printf ("UNLOAD STARTING FOR %s (%p) IN THREAD 0x%x.\n", domain->friendly_name, domain, GetCurrentThreadId ()); */
1530 /* Atomically change our state to UNLOADING */
1531 prev_state = InterlockedCompareExchange ((gint32*)&domain->state,
1532 MONO_APPDOMAIN_UNLOADING,
1533 MONO_APPDOMAIN_CREATED);
1534 if (prev_state != MONO_APPDOMAIN_CREATED) {
1535 if (prev_state == MONO_APPDOMAIN_UNLOADING)
1536 mono_raise_exception (mono_get_exception_cannot_unload_appdomain ("Appdomain is already being unloaded."));
1538 if (prev_state == MONO_APPDOMAIN_UNLOADED)
1539 mono_raise_exception (mono_get_exception_cannot_unload_appdomain ("Appdomain is already unloaded."));
1541 g_assert_not_reached ();
1544 mono_domain_set (domain, FALSE);
1545 /* Notify OnDomainUnload listeners */
1546 method = mono_class_get_method_from_name (domain->domain->mbr.obj.vtable->klass, "DoDomainUnload", -1);
1550 mono_runtime_invoke (method, domain->domain, NULL, &exc);
1552 /* Roll back the state change */
1553 domain->state = MONO_APPDOMAIN_CREATED;
1554 mono_domain_set (caller_domain, FALSE);
1555 mono_raise_exception ((MonoException*)exc);
1558 thread_data.domain = domain;
1559 thread_data.failure_reason = NULL;
1562 * First we create a separate thread for unloading, since
1563 * we might have to abort some threads, including the current one.
1566 * If we create a non-suspended thread, the runtime will hang.
1568 * http://bugzilla.ximian.com/show_bug.cgi?id=27663
1571 thread_handle = CreateThread (NULL, 0, unload_thread_main, &thread_data, 0, &tid);
1573 thread_handle = CreateThread (NULL, 0, (LPTHREAD_START_ROUTINE)unload_thread_main, &thread_data, CREATE_SUSPENDED, &tid);
1574 if (thread_handle == NULL) {
1577 ResumeThread (thread_handle);
1580 /* Wait for the thread */
1581 while ((res = WaitForSingleObjectEx (thread_handle, INFINITE, TRUE) == WAIT_IO_COMPLETION)) {
1582 if (mono_thread_has_appdomain_ref (mono_thread_current (), domain) && (mono_thread_interruption_requested ()))
1583 /* The unload thread tries to abort us */
1584 /* The icall wrapper will execute the abort */
1585 CloseHandle (thread_handle);
1588 CloseHandle (thread_handle);
1590 mono_domain_set (caller_domain, FALSE);
1592 if (thread_data.failure_reason) {
1595 /* Roll back the state change */
1596 domain->state = MONO_APPDOMAIN_CREATED;
1598 g_warning (thread_data.failure_reason);
1600 ex = mono_get_exception_cannot_unload_appdomain (thread_data.failure_reason);
1602 g_free (thread_data.failure_reason);
1603 thread_data.failure_reason = NULL;
1605 mono_raise_exception (ex);